Well DeanoZ from what I've observed, the ideal is to set up a high treestand that overlooks the swamp. That way you can look down into the edge cover and get a shot without the deer knowing you're there. Wind direction is critical. But the biggest advantage for the hunter is that the deer feel VERY secure in the swamp and don't expect danger from above. Depending on the size of the area, a long range rifle is necessary if your view over the swamp is long. If the swamp has puddles of water, all the better to hear the deer and pinpoint their location.
If the swamp your hunting has dense cover then it is most likely a sanctuary for one or more mature bucks. They can spend the entire season in these areas eluding hunters. The biggest buck I ever saw lived in the swamp and was shot only because he stood up out of his bed during the season to check out another hunter who was dragging a deer on the edge of the swamp about 200 yards away. Fatal mistake. So to sum it up; Get into a stand on the edge of the cover, get in early and intercept the deer on their way in. Be very vigilant when taking a stand looking onto the cover. The deer will show themselves but for a very short time. Make the most of the opportunity.
you never shoot a buck from the couch